Rotary engine.



No. 881,014. PATENTED MAR. 3. 1908. J. F. MASSEY.

ROTARY ENGINE.

APPLICATION FILED JUNE 26, 1907.

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No. 88l,014.

W/TNESSES I PATENTED MAR. 3, 1908. J. F. MASSEY.

ROTARY ENGINE.

APPLICATION FILED JUNE 25, 1907.

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PATENTED MAR. 3, 1908.

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J. F. MASSEY. ROTARY ENGINE.

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J. F. MASSEY.

ROTARY ENGINE.

APPLICATION IILED JUNE 25, 1907.

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UNITED STATES Parana FFICE.

JAMES FRANK MASSEY, OF DOUGLAS, ARIZONA TERRITORY.

ROTARY ENGINE Application filed June 25, 1907.

To all whom it may concern:

Be it known that I, JAMES FRANK MAssEY, a citizen of the United States, and a resident of Douglas, in the county of Cochise and Territory of Arizona, have invented anew and Improved Rotary Engine, of which the following is a full, clear, and exact description.

My invention relates to rotary engines, my more particular object being to provide certain details of construction whereby the simplicity and efliciency of operation are greatly increased.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a rear elevation of the engine showing the arrangement of the various levers and arms employed for manipulating the plug valves; Fig. 2 is an enlarged ver tical section upon the line 22 of Fig. 3, looking in the direction of the arrow, and showing the steam wheel made in halves,

- and also the inlet wheel and ports therefor,

together with a part of the gearing of the engine; Fig. 3 is a vertical section substantially upon the line 3-3 of Fig. 2, looking in the direction of the arrow and showing the arrangement of the steam wheel, and the two abutments used independently when the rotation of the steam wheel is in different direotions, this view further showing the steam passages and outlets; Fig. 4 is a plan view of one of the two halves of the steam wheel removed from the casing, this view further showing the arrangement of the slides carried by the wheel and the steam passages for actuating these slides; and Fig. 5 is a plan view of the other half of the steam wheel likewise removed from the casing.

Mounted u on a base 6 is a steam chest 7 of substantia ly arcuate form, and integral with this steam chest is a steam cylinder 8 provided at its lower portion with a web 9, the latter forming the upper boundary of the steam chest 7. A frontplate 10 registers externally with the casing 8 and steam chest 7, as will be understood from Fig. 2. A web 11, having a substantially cylindrical form, is connected with theweb 9, being preferably integral therewith, and is concentric with the steam chest 7.

Extending entirely through the casing is Specification of Letters Patent.

Patented March 3, 1908.

Serial No. 380,813.

a revoluble shaft 12, and mounted rigidly the valve.

The engine inlet is shown at 15. The front plate 10 is secured in position by bolts 16,

thus serving as a cylinder head. The cylindrical Web 11 is provided with two oppositelydisposed steam ports 17, 18 each adapted to register with the steam ports 14 of the revoluble valve 13. Stufling boxes 19, 20 are provided for the shaft 12 so as to render the latter steam tight without interfering with its freedom of rotation. The plug valve 13 is of a general cylindrical form and is provided adjacent to its ends with annular packings 13 preferably of metal, whereby the plug is rendered substantially steam-tight.

Mounted upon the shaft 12 is a sprocket wheel 21 engaged by a chain 22, the latter engaging with another sprocket wheel 23. This sprocket Wheel is rigidly mounted upon the main shaft 24 of the engine, this shaft carrying also two larger wheels 25, 26, each of these Wheels being adapted to serve either as a fly-wheel or as a driving-wheel. The main shaft 24 passes through stuffing boxes 27, 28, whereby it is rendered steam-tight. The web 9 (see Fig. 3) is cored so as to provide passages 29, 30, the latter terminating in stationary ports 31, 32 adapted to register with the ports 14 of the revoluble plug valve 13. Mounted upon rocking shafts 33, 34 are rocking valves 33, 34 provided with ports 35, 36. a

The casing 8 is cored so as to form passages 37, 38, said passages communicating with exhaust pipes 39, 40. Rocking earns 41, 42 are mounted within apertures 43, in the casing 8 and are secured rigidly upon rocking shafts 45, 46. The rocking cams 41, 42 are connected by links 49, 50 with abutments 51, 52. The abutments are provided with small vents 53, 54 for the purpose of equalizing any accidentalv variations there may be in the steam aperture around the abutment. The abutments 53, 54 are mounted uponlinks 55, 56 sunken within the casing and adapted to swing inwardly a slight distance, as indicated in Fig. 3.

Each time a rocking cam 41 or 42 is movable therewith. The half turned, the link 49 or 50 forces the abutment 51 or 52 inward or outward, as the case may be (see Fig. 3). Ports 57, 58 (see Fig. 3) are adapted to register with the ports 35, 36 of the valves 33, 34. At 59, 60 are shown the two-halves of the power wheel. These are connected together by bolts 61 passing through them, as indicated in Fig 2.

The steam wheel is provided. with an annular circumferential space or channel 62 which I designate as the steam space. In order to enable steam to be retained within this space, I provide the steam wheel with annular packings 63, preferably of metal. The steam wheel is further provided with movable slides 64 disposed radially and adapted to slide toward and from the center of the wheel. Each slide 64 is mounted upon a yoke 65, and connected with the latter are pistons 66, 67 extending into cylinders 68, 69, my purpose being to admit steam to these cylinders, as herein described, so as to force the slides 64 inwardly and outwardly. In the particular instance shown in the drawings, the cylinders are made by merely coring out the two halves of the steam wheel, but it will be understood that the cylinders may be constructed in any other manner desired.

The steam wheel is provided with guide slots 7 0, through which portions of the slides 64 extend, this arrangement being desirable in order to maintain the slides in proper working relation to the steam wheel. The cylinders 68, 69 are in open communication with rectangular spaces 71 in the steam Wheel, there being one such space to each slide 64. Spring buffers 72, each mounted within a space 71 cored out of the steam wheel, are provided for the purpose of cushioning the force of the slides 64 and parts 59 of the steam wheel is provided with ports 73 each communicating by passages 74, 75 with the cylinders 68, 69. Similarly the half 60 of the steam wheel is provided with ports 76 merging into passages 77, 78, the latter being connected with the cylinders 68, 69.

A bar 79 is supported upon arms 79, the latter being mounted rigidly upon the rocking shafts 45, 46. Another bar 80is mounted upon arms 80*, the latter being rigidly connected with the rocking shafts 33, 34. A lever 81 is mounted upon a pivot 82 and is connected with the bar 80. A link 83 connects the lever 81 with a hand lever 84, the latter being pivoted at 85. Another hand lever 86 pivoted. at 87 is connected with the bar 79. The two levers 84, 86 are mounted to. swing in sectors 88, 89.

The operation of my device is as follows: By manipulating the hand lever 84 the arms 80 are turned so as to rock the shafts 33, 34. Similarly by manipulating the hand lever 86 the arms 79 cause the shafts 45, 46 to rock. In order for the steam wheel to turn in a contraclockwise direction, according to Fig. 3, the hand levers are so manipulated as to bring the cams 41, 42, 33 34 into the position indicated. This being done, the abutments 51, 52 occupy the positions shown and the slide 64 immediately adjacent the abutment 51 in this figure, is in condition to turn the steam wheel. Steam passes from the steam chest 7 through port 17, one of the steam spaces 14, port 31, passage 29, ports 35, 37, into the space intermediate the abutment 51 and the slide 64 immediately below it. Steam also passes into port 73, passages 74, 75, and thence into the cylinders connected with these passages. The steam pressure within the cylinders causes the slide 64, immediately adjacent to the abutment 51, to press outwardly, whereas the next slide 64 (top of Fig. 3) is drawn inwardly- The wheel now turns onethird of a revolution and the steam, now exhausted, is delivered through ports 58, 36 and passage 38 to the exhaust pipe 40. entering any of the other cylinders 68, 69, even those particular cylinders affecting the movement just stated, is equalized by counter-pressure in the opposite direction. In order to reverse, the hand levers 84, 86 are turned so as to bring the cams 41, 42 and valves 33 34 into the opposite positions. This retracts the abutment 51 and extends the abutment 52 inwardly till it engages the bottom of the channel of the steam wheel. The rotary member of the engine now turns in the opposite direction, for the reason that the mechanism for rotating in one direction is a substantial duplicate of the mechanism used for rotating in the opposite direction. It will be noted, therefore, that each slide 64 is turned alternately inwardly and outwardly, the passage of the slide outward occurring just after the slide passes the abutment 51 or 52, according to the direction of rotation.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of a casing, abutments mounted therein and movable relatively thereto, means for moving said abutments into predetermined positions and for retract- Any of the steam.

ing said abutments from said positions, a

With said abutment, means controllable at In testimony whereof I have signed my will for actuating said cam so as to move said name to this specification in the presence of abutment, a steam wheel provided With a two subscribing Witnesses.

portion for engaging said abutment, a slide JAMES FRANK MASSEY. mounted upon said steam Wheel, and means Witnesses: for admitting steam intermediate said abut- H. C. BENNER,

ment and said slide. M. J. DONOHOE; 

